基于MD5的文件完整性检测软件设计

防范网络攻击最常用的方法就是使用防火墙,但是仅仅使用防火墙来保护内部网络安全是不够的。论文研究并设计了一个文件完整性检测软件,可以弥补防火墙保护内部网络安全的不足。它采用MD5算法,对某些敏感文件进行多次测,若当前检测的信息摘要值与上次不同,则说明该文件已被修改。在入侵者进入系统后,而让系统文件并不改动是非常困难的,因而该软件能检测系统可能受到的攻击。

The design of file integrity checking system based on MD5

Firewall is usually used to protect network against attacks,but it is not powerful enough to protect intranet.A file integrity checking system was proposed which based on MD5,it can make up the shortage of firewall.The same message digest can be got from checking the same file in different times if file was not changed.So the system can find attacks by the difference of the digest of the sensitive files.